Astrobiology

Graphical Abstract — Microbial Biotechnology via PubMed The first forms of life on Earth were microbial, preceding the evolution of multicellular life by more than two billion years. Based on

The North Polar layered deposits are a stack of ice-rich layers, with different layers likely having varying amounts of dust. uahirise Larger image — NASA HiRISE Here, a straight-line feature

NanoSIMS ratio and ion images (top images) of a region containing a 17O-rich presolar silicate grain (arrows). The elemental maps and spectra from SEM-EDX analysis confirm the grain is a

Transmission electron micrograph of the bacteriophage Qβ attached to sex pilus of the bacterium Escherichia coli — Wikpedia Introduction Microgravity is a critical environmental factor in space that can alter

Histograms and uncertainty ellipse (red) for computed Re(k2) and Im(k2) compared with the observed uncertainty ellipse (black) for the interior models of Titan without (a) and with (b) an ocean.

This illustration shows a star surrounded by a protoplanetary disk. A new study uses data from NASA’s Spitzer Space Telescope and four ground-based telescopes to determine the distance from a

Optical SETI – Grok via Astrobiology.com The searches for other life and for intelligence are fundamental problems that science faces today. Most searches so far have been focused on radio,

Outgoing longwave radiation of six potentially visible hemispheres of the planet. Teegarden’s Star is one of the most promising targets for the first observations of LIFE, as a non-transiting

Final semi-major axes of satellites versus their initial orbital distance (in Hill radii) for TRAPPIST-1 e. — astro-ph.EP We investigate the dynamical stability of potential satellites orbiting the seven planets